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Finding the Fourth Proportional to 322.12, 481.10 and 267.04

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Solution

The fourth proportional to 322.12, 481.10 and 267.04 is: 398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.12 : 481.10 = 267.04 : x
  2. Step 2: Convert to fraction form
    322.12/481.10 = 267.04/x
  3. Step 3: Cross multiply
    322.12x = 481.10 × 267.04
  4. Step 4: Simplify right side
    322.12x = 128,472.94
  5. Step 5: Solve for x
    x = 128,472.94/322.12
  6. Step 6: Final answer
    x = 398.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.